449740

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 957600

約数和(自身を除く): 507860

約数列:

[1, 2, 4, 5, 10, 20, 113, 199, 226, 398, 452, 565, 796, 995, 1130, 1990, 2260, 3980, 22487, 44974, 89948, 112435, 224870, 449740]

約数ペア:

[(1, 449740), (2, 224870), (4, 112435), (5, 89948), (10, 44974), (20, 22487), (113, 3980), (199, 2260), (226, 1990), (398, 1130), (452, 995), (565, 796)]